// ./l1_express.js 和 ./l2_http.js 比起来这个有点臃肿...
var express = require('express');
var http = require('http');
var app = express();
app.get('/', function(req, res) {
    res.send('Hello World!');  // res.render('index', { title: 'Express' }); 调用当前路径下的 index.jade 模板
})
var server = http.createServer(app);
server.listen(3002);
console.log('server started on http://127.0.0.1:3000/');
